Spirit AeroSystems offices in Farmers Branch, Texas. The US Federal Aviation Administration is expanding its probe into Boeing 737 Max 9 quality control following this month’s in-flight blowout of a part of an Alaska Airlines plane.
Mandatory Credit:	Shelby Tauber/Bloomberg/Getty Images

Spirit AeroSystems offices in Farmers Branch, Texas. The US Federal Aviation Administration is expanding its probe into Boeing 737 Max 9 quality control following this month’s in-flight blowout of a part of an Alaska Airlines plane.
Mandatory Credit: Shelby Tauber/Bloomberg/Getty Images

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FAA’s 737 Max probe includes another airplane parts manufacturer

The US Federal Aviation Administration is expanding its probe into Boeing 737 Max 9 quality control following this month’s in-flight blowout of a part of an Alaska Airlines plane.